| 1. | Mar , e . " the border condition : uneven development and the space of flows . " 1995 边界条件:不均衡的发展与流动空间, 1995 |
| 2. | It use three border conditions to calculate tectonic stress field , earth stress field and stress field of water pressure , which will be helpful to quantitatively research ris . 4 模型分别采用三种边界条件反演库区的构造应力场、地应力场和水压应力场,这为定量地研究水库诱发地震创造了条件。 |
| 3. | Using continuous and border conditions of each layer , the negative friction will be attained . the character of soil which is around an in the tip of the pile varied greatly . we must select different hardening or soft model 由于桩侧和桩尖土性质变化较大,因此对多层土各土层可依据实际情况选择是采用双折线模型的硬化模型还是软化模型。 |
| 4. | The simplec method , which was improved based on the simple method , is adopted to find the numerical value answers , and the non - structured mixed grid is adopted for grid partition to enhance its self - adaptability to complicated border conditions 网格划分则采用了非结构化混合网格以增强对复杂边界的自适应性。模型通过验证计算表明,模拟精度较高,为工程措施的科学决策提供了重要依据。 |
| 5. | The paper analyzes and discusses the law that the result precision of thermal stress is affected by the proportionments of element border length , border condition , form function and so on , and compares the method with displacement finite element method being used 分析、讨论单元边长比、边界条件以及插值函数形式等对热应力结果精度的影响规律,并与现有的位移有限元方法进行比较、分析、评述。 |
| 6. | The author utilizes double broken line model to show relation between friction and displacement around the pile . the article establishes equation about friction and relative displacement according to elastic or plastic condition that soil around or in the tip of the pile lies in . then we use continuous and border conditions to determine relative displacement 作者用双折线硬化模型来表示桩侧摩阻力与桩土相对位移的关系,并根据桩侧土与桩尖土处于不同的弹性和塑性状态,建立桩身轴向力和桩土相对位移的微分方程,利用连续和边界条件可解出相对位移,然后再根据相对位移又解出桩轴向力和负摩阻力。 |
| 7. | Radiation modes are dependent on the radiator ' s geometry shape and vibration frequency , but are not relative to the material characteristic and the border condition of the radiator . further more , the radiation efficiency of the radiation modes falls off very rapidly with the increase of modes order at low frequency . the adjoint coefficient of sound radiation modes is proportional to the corresponding sound radiation power 声辐射模态由辐射体的几何形状和振动频率决定,与辐射体本身的材料特性以及边界条件无关;特别是在中低频率时,声辐射模态对应的辐射效率随模态阶数的增加而迅速降低。 |
| 8. | The amplitude characteristic equations of p wave and s wave in transverse isotropic media have been deduced by using the method of aki and richards , that is use the border conditions in elastic interface to solve the elastic wave equation and to decide the energy distribution of different types of wave 本文针对横向各向同性介质( ti - transverseisotropy ) ,利用aki和richards的方法,即根据弹性分界面上的边界条件求解弹性波动方程,确定各种波之间的能量分配关系,建立了横向各向同性介质中p波和sv波入射时的振幅特征方程。 |